media-types 媒体类型 video html5

media-types 媒体类型 video html5

http://www.iana.org/assignments/media-types/media-types.xhtml
http://www.iana.org/assignments/media-types/application/mp4

 

 

http://www.iana.org/assignments/media-types/media-types.xhtml

 

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Media Types   Last Updated     2016-05-17 Registration Procedure(s)       Expert Review for Vendor and Personal Trees.   Expert(s)       Ned Freed (primary), Murray Kucherawy (secondary), Mark Baker (secondary), Bjoern Hoehrmann (secondary)   Reference     [RFC6838][RFC4855] Note       Per Section 3.1 of [RFC6838], Standards Tree requests made through IETF     documents will be reviewed and approved by the IESG, while requests made by     other recognized standards organizations will be reviewed by the Designated     Expert in accordance with the Specification Required policy. IANA will verify     that this organization is recognized as a standards organization by the     IESG.   Note       [RFC2046] specifies that Media Types (formerly known as MIME types) and Media     Subtypes will be assigned and listed by the IANA.       Procedures for registering Media Types can be found in [RFC6838], [RFC4289],     and [RFC6657]. Additional procedures for registering media types for transfer via     Real-time Transport Protocol (RTP) can be found in [RFC4855].       The following is the list of Directories of Content Types and Subtypes. If you wish to     register a Media Type with the IANA, please see the following for the online application:       [Application for registration of Media Types]       Other Media Type Parameters: [IANA registry media-types-parameters]     Media Type Sub-Parameters: [IANA registry media-type-sub-parameters]   Available Formats       XML     HTML     Plain text   Registries included below       application     audio     example     image     message     model     multipart     text     video

 

 

 

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http://www.iana.org/assignments/media-types/application/mp4

 

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(RFC 4337 published March 2006, RFC 6381 published August 2011, subtype last updated August 2011)   MIME media type name: application   MIME subtype name: mp4   Required parameters: none   Optional parameters: none   Encoding considerations: base64 IS generally preferred; files are    binary and should be transmitted without CR/LF conversion, 7-bit    stripping, etc.   Security considerations: See section 5 of RFC 4337.   Interoperability considerations: A number of interoperating    implementations exist within the ISO/IEC 14496 community, and that    community has reference software for reading and writing the file    format.   Published specification: ISO/IEC 14496-1:2001.   Applications: Multimedia   Additional information:      Magic number(s): none      File extension(s): mp4 and mpg4 are both declared at       <http://pitch.nist.gov/nics/>.      Macintosh File Type Code(s): mpg4 is registered with Apple.   Person to contact for info: David Singer, singer&apple.com   Intended usage: Common   Author/Change controller: David Singer, ISO/IEC 14496 file format    chair

 

 

 

 

https://www.base64-image.de/